AbstractThere is some evidence that tuberculosis vaccine bacillus Calmette-Guérin (BCG) has non-specific beneficial effects against non-related infections. Here, we examined the possible association between BCG vaccination with prevalence and mortality by COVID-19 by using publicly available data of COVID-19 in 199 countries/regions and the BCG World Atlas. By using linear regression modeling, we
![Association of BCG vaccination policy with prevalence and mortality of COVID-19](https://cdn-ak-scissors.b.st-hatena.com/image/square/ec44e658b0b9c3c592ee9e2a42b540eb7c78bb9b/height=288;version=1;width=512/https%3A%2F%2Fwww.medrxiv.org%2Fsites%2Fdefault%2Ffiles%2Fimages%2Fmedrxiv_logo_homepage7-5-small-test-up.png)